﻿//Copyright 2008 Kristian Gundry And Rune Juhl-Petersen
//This file is part of Plain.

//Plain is free software: you can redistribute it and/or modify
//it under the terms of the GNU Lesser General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//any later version.

//Plain is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Lesser General Public License for more details.

//You should have received a copy of the GNU Lesser General Public License
//along with Plain.  If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Collections.Generic;
using System.Text;

namespace Plain.Validation{
    /// <summary>
    /// By implementing this interface you can define your own validation rules and apply them to the domain model
    /// </summary>
    public interface IValidationAttribute{
        /// <summary>
        /// This method is called when plain is evaluating a property. 
        /// </summary>
        /// <remarks>
        /// Should normally not handle null objects, as this is done in a special validation
        /// </remarks>
        /// <param name="entity">Reference object containing property. This is present so you can compare the property with other properties of the object.</param>
        /// <param name="property"><see cref="object"/> to validate</param>
        /// <returns>false if validation fails</returns>
        bool Validate(object entity, object property);
    }
}
